212040030453 has 16 divisors (see below), whose sum is σ = 289617463296. Its totient is φ = 137947803840.

The previous prime is 212040030443. The next prime is 212040030467. The reversal of 212040030453 is 354030040212.

212040030453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212040030453 - 2¹⁷ = 212039899381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212040030443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4538526 + ... + 4585007.

It is an arithmetic number, because the mean of its divisors is an integer number (18101091456).

Almost surely, 2^212040030453 is an apocalyptic number.

It is an amenable number.

212040030453 is a deficient number, since it is larger than the sum of its proper divisors (77577432843).

212040030453 is a wasteful number, since it uses less digits than its factorization.

212040030453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9123724.

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 212040030453 its reverse (354030040212), we get a palindrome (566070070665).

The spelling of 212040030453 in words is "two hundred twelve billion, forty million, thirty thousand, four hundred fifty-three".